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gimp/app/widgets/gimplayertreeview.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimplayertreeview.c
* Copyright (C) 2001-2003 Michael Natterer <mitch@gimp.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpcontainer.h"
#include "core/gimplayer.h"
#include "core/gimplayermask.h"
#include "core/gimplayer-floating-sel.h"
#include "core/gimplist.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimpitemundo.h"
#include "text/gimptextlayer.h"
#include "file/file-open.h"
#include "file/file-utils.h"
#include "gimpactiongroup.h"
#include "gimpcellrendererviewable.h"
#include "gimpcontainerview.h"
#include "gimpdnd.h"
#include "gimphelp-ids.h"
#include "gimplayertreeview.h"
#include "gimpviewrenderer.h"
#include "gimpuimanager.h"
#include "gimpwidgets-constructors.h"
#include "gimp-intl.h"
static void gimp_layer_tree_view_class_init (GimpLayerTreeViewClass *klass);
static void gimp_layer_tree_view_init (GimpLayerTreeView *view);
static void gimp_layer_tree_view_view_iface_init (GimpContainerViewInterface *view_iface);
static GObject * gimp_layer_tree_view_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_layer_tree_view_finalize (GObject *object);
static void gimp_layer_tree_view_unrealize (GtkWidget *widget);
static void gimp_layer_tree_view_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static void gimp_layer_tree_view_set_container (GimpContainerView *view,
GimpContainer *container);
static gpointer gimp_layer_tree_view_insert_item (GimpContainerView *view,
GimpViewable *viewable,
gint index);
static gboolean gimp_layer_tree_view_select_item (GimpContainerView *view,
GimpViewable *item,
gpointer insert_data);
static void gimp_layer_tree_view_set_preview_size (GimpContainerView *view);
static gboolean gimp_layer_tree_view_drop_possible(GimpContainerTreeView *view,
GimpDndType src_type,
GimpViewable *src_viewable,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos,
GtkTreeViewDropPosition *return_drop_pos,
GdkDragAction *return_drag_action);
static void gimp_layer_tree_view_drop_color (GimpContainerTreeView *view,
const GimpRGB *color,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos);
static void gimp_layer_tree_view_drop_uri_list (GimpContainerTreeView *view,
GList *uri_list,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos);
static void gimp_layer_tree_view_drop_component (GimpContainerTreeView *tree_view,
GimpImage *gimage,
GimpChannelType component,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos);
static void gimp_layer_tree_view_set_image (GimpItemTreeView *view,
GimpImage *gimage);
static GimpItem * gimp_layer_tree_view_item_new (GimpImage *image);
static void gimp_layer_tree_view_floating_selection_changed
(GimpImage *gimage,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_paint_mode_menu_callback
(GtkWidget *widget,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_preserve_button_toggled
(GtkWidget *widget,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_opacity_scale_changed
(GtkAdjustment *adj,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_layer_signal_handler
(GimpLayer *layer,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_update_options (GimpLayerTreeView *view,
GimpLayer *layer);
static void gimp_layer_tree_view_update_menu (GimpLayerTreeView *view,
GimpLayer *layer);
static void gimp_layer_tree_view_mask_update (GimpLayerTreeView *view,
GtkTreeIter *iter,
GimpLayer *layer);
static void gimp_layer_tree_view_mask_changed (GimpLayer *layer,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_renderer_update(GimpViewRenderer *renderer,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_update_borders (GimpLayerTreeView *view,
GtkTreeIter *iter);
static void gimp_layer_tree_view_mask_callback (GimpLayerMask *mask,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_layer_clicked (GimpCellRendererViewable *cell,
const gchar *path,
GdkModifierType state,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_mask_clicked (GimpCellRendererViewable *cell,
const gchar *path,
GdkModifierType state,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_alpha_update (GimpLayerTreeView *view,
GtkTreeIter *iter,
GimpLayer *layer);
static void gimp_layer_tree_view_alpha_changed (GimpLayer *layer,
GimpLayerTreeView *view);
static GimpDrawableTreeViewClass *parent_class = NULL;
static GimpContainerViewInterface *parent_view_iface = NULL;
GType
gimp_layer_tree_view_get_type (void)
{
static GType view_type = 0;
if (! view_type)
{
static const GTypeInfo view_info =
{
sizeof (GimpLayerTreeViewClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gimp_layer_tree_view_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpLayerTreeView),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_layer_tree_view_init,
};
static const GInterfaceInfo view_iface_info =
{
(GInterfaceInitFunc) gimp_layer_tree_view_view_iface_init,
NULL, /* iface_finalize */
NULL /* iface_data */
};
view_type = g_type_register_static (GIMP_TYPE_DRAWABLE_TREE_VIEW,
"GimpLayerTreeView",
&view_info, 0);
g_type_add_interface_static (view_type, GIMP_TYPE_CONTAINER_VIEW,
&view_iface_info);
}
return view_type;
}
static void
gimp_layer_tree_view_class_init (GimpLayerTreeViewClass *klass)
{
GObjectClass *object_class;
GtkWidgetClass *widget_class;
GimpContainerTreeViewClass *tree_view_class;
GimpItemTreeViewClass *item_view_class;
object_class = G_OBJECT_CLASS (klass);
widget_class = GTK_WIDGET_CLASS (klass);
tree_view_class = GIMP_CONTAINER_TREE_VIEW_CLASS (klass);
item_view_class = GIMP_ITEM_TREE_VIEW_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->constructor = gimp_layer_tree_view_constructor;
object_class->finalize = gimp_layer_tree_view_finalize;
widget_class->unrealize = gimp_layer_tree_view_unrealize;
widget_class->style_set = gimp_layer_tree_view_style_set;
tree_view_class->drop_possible = gimp_layer_tree_view_drop_possible;
tree_view_class->drop_color = gimp_layer_tree_view_drop_color;
tree_view_class->drop_uri_list = gimp_layer_tree_view_drop_uri_list;
tree_view_class->drop_component = gimp_layer_tree_view_drop_component;
item_view_class->item_type = GIMP_TYPE_LAYER;
item_view_class->signal_name = "active-layer-changed";
item_view_class->set_image = gimp_layer_tree_view_set_image;
item_view_class->get_container = gimp_image_get_layers;
item_view_class->get_active_item = (GimpGetItemFunc) gimp_image_get_active_layer;
item_view_class->set_active_item = (GimpSetItemFunc) gimp_image_set_active_layer;
item_view_class->reorder_item = (GimpReorderItemFunc) gimp_image_position_layer;
item_view_class->add_item = (GimpAddItemFunc) gimp_image_add_layer;
item_view_class->remove_item = (GimpRemoveItemFunc) gimp_image_remove_layer;
item_view_class->new_item = gimp_layer_tree_view_item_new;
item_view_class->action_group = "layers";
item_view_class->activate_action = "layers-text-tool";
item_view_class->edit_action = "layers-edit-attributes";
item_view_class->new_action = "layers-new";
item_view_class->new_default_action = "layers-new-last-values";
item_view_class->raise_action = "layers-raise";
item_view_class->raise_top_action = "layers-raise-to-top";
item_view_class->lower_action = "layers-lower";
item_view_class->lower_bottom_action = "layers-lower-to-bottom";
item_view_class->duplicate_action = "layers-duplicate";
item_view_class->delete_action = "layers-delete";
item_view_class->reorder_desc = _("Reorder Layer");
}
static void
gimp_layer_tree_view_init (GimpLayerTreeView *view)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
GtkWidget *hbox;
GtkWidget *toggle;
GtkWidget *image;
GtkIconSize icon_size;
PangoAttribute *attr;
/* The following used to read:
*
* tree_view->model_columns[tree_view->n_model_columns++] = ...
*
* but combining the two lead to gcc miscompiling the function on ppc/ia64
* (model_column_mask and model_column_mask_visible would have the same
* value, probably due to bad instruction reordering). See bug #113144 for
* more info.
*/
view->model_column_mask = tree_view->n_model_columns;
tree_view->model_columns[tree_view->n_model_columns] = GIMP_TYPE_VIEW_RENDERER;
tree_view->n_model_columns++;
view->model_column_mask_visible = tree_view->n_model_columns;
tree_view->model_columns[tree_view->n_model_columns] = G_TYPE_BOOLEAN;
tree_view->n_model_columns++;
view->options_box = gtk_table_new (2, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (view->options_box), 2);
gtk_box_pack_start (GTK_BOX (view), view->options_box, FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (view), view->options_box, 0);
gtk_widget_show (view->options_box);
hbox = gtk_hbox_new (FALSE, 6);
/* Paint mode menu */
view->paint_mode_menu = gimp_paint_mode_menu_new (FALSE);
gtk_box_pack_start (GTK_BOX (hbox), view->paint_mode_menu, TRUE, TRUE, 0);
gtk_widget_show (view->paint_mode_menu);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (view->paint_mode_menu),
GIMP_NORMAL_MODE,
G_CALLBACK (gimp_layer_tree_view_paint_mode_menu_callback),
view);
gimp_help_set_help_data (view->paint_mode_menu, NULL,
GIMP_HELP_LAYER_DIALOG_PAINT_MODE_MENU);
/* Preserve transparency toggle */
view->preserve_trans_toggle = toggle = gtk_check_button_new ();
gtk_box_pack_end (GTK_BOX (hbox), toggle, FALSE, FALSE, 0);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_layer_tree_view_preserve_button_toggled),
view);
gimp_help_set_help_data (toggle, _("Keep transparency"),
GIMP_HELP_LAYER_DIALOG_KEEP_TRANS_BUTTON);
gtk_widget_style_get (GTK_WIDGET (view),
"button_icon_size", &icon_size,
NULL);
image = gtk_image_new_from_stock (GIMP_STOCK_TRANSPARENCY, icon_size);
gtk_container_add (GTK_CONTAINER (toggle), image);
gtk_widget_show (image);
gimp_table_attach_aligned (GTK_TABLE (view->options_box), 0, 0,
_("Mode:"), 0.0, 0.5,
hbox, 2, FALSE);
/* Opacity scale */
view->opacity_adjustment =
GTK_ADJUSTMENT (gimp_scale_entry_new (GTK_TABLE (view->options_box), 0, 1,
_("Opacity:"), -1, -1,
100.0, 0.0, 100.0, 1.0, 10.0, 1,
TRUE, 0.0, 0.0,
NULL,
GIMP_HELP_LAYER_DIALOG_OPACITY_SCALE));
g_signal_connect (view->opacity_adjustment, "value_changed",
G_CALLBACK (gimp_layer_tree_view_opacity_scale_changed),
view);
gtk_widget_set_sensitive (view->options_box, FALSE);
view->italic_attrs = pango_attr_list_new ();
attr = pango_attr_style_new (PANGO_STYLE_ITALIC);
attr->start_index = 0;
attr->end_index = -1;
pango_attr_list_insert (view->italic_attrs, attr);
view->bold_attrs = pango_attr_list_new ();
attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
attr->start_index = 0;
attr->end_index = -1;
pango_attr_list_insert (view->bold_attrs, attr);
view->mode_changed_handler_id = 0;
view->opacity_changed_handler_id = 0;
view->preserve_trans_changed_handler_id = 0;
view->mask_changed_handler_id = 0;
}
static void
gimp_layer_tree_view_view_iface_init (GimpContainerViewInterface *view_iface)
{
parent_view_iface = g_type_interface_peek_parent (view_iface);
view_iface->set_container = gimp_layer_tree_view_set_container;
view_iface->insert_item = gimp_layer_tree_view_insert_item;
view_iface->select_item = gimp_layer_tree_view_select_item;
view_iface->set_preview_size = gimp_layer_tree_view_set_preview_size;
}
static GObject *
gimp_layer_tree_view_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GimpContainerTreeView *tree_view;
GimpLayerTreeView *layer_view;
GObject *object;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
tree_view = GIMP_CONTAINER_TREE_VIEW (object);
layer_view = GIMP_LAYER_TREE_VIEW (object);
layer_view->mask_cell = gimp_cell_renderer_viewable_new ();
gtk_tree_view_column_pack_start (tree_view->main_column,
layer_view->mask_cell,
FALSE);
gtk_tree_view_column_set_attributes (tree_view->main_column,
layer_view->mask_cell,
"renderer",
layer_view->model_column_mask,
"visible",
layer_view->model_column_mask_visible,
NULL);
tree_view->renderer_cells = g_list_prepend (tree_view->renderer_cells,
layer_view->mask_cell);
g_signal_connect (tree_view->renderer_cell, "clicked",
G_CALLBACK (gimp_layer_tree_view_layer_clicked),
layer_view);
g_signal_connect (layer_view->mask_cell, "clicked",
G_CALLBACK (gimp_layer_tree_view_mask_clicked),
layer_view);
gimp_dnd_uri_list_dest_add (GTK_WIDGET (tree_view->view),
NULL, tree_view);
gimp_dnd_component_dest_add (GTK_WIDGET (tree_view->view),
NULL, tree_view);
gimp_dnd_viewable_dest_add (GTK_WIDGET (tree_view->view), GIMP_TYPE_CHANNEL,
NULL, tree_view);
gimp_dnd_viewable_dest_add (GTK_WIDGET (tree_view->view), GIMP_TYPE_LAYER_MASK,
NULL, tree_view);
/* hide basically useless edit button */
gtk_widget_hide (GIMP_ITEM_TREE_VIEW (layer_view)->edit_button);
layer_view->anchor_button =
gimp_editor_add_action_button (GIMP_EDITOR (layer_view), "layers",
"layers-anchor", NULL);
gimp_container_view_enable_dnd (GIMP_CONTAINER_VIEW (layer_view),
GTK_BUTTON (layer_view->anchor_button),
GIMP_TYPE_LAYER);
gtk_box_reorder_child (GTK_BOX (GIMP_EDITOR (layer_view)->button_box),
layer_view->anchor_button, 5);
return object;
}
static void
gimp_layer_tree_view_finalize (GObject *object)
{
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (object);
if (layer_view->italic_attrs)
{
pango_attr_list_unref (layer_view->italic_attrs);
layer_view->italic_attrs = NULL;
}
if (layer_view->bold_attrs)
{
pango_attr_list_unref (layer_view->bold_attrs);
layer_view->bold_attrs = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_layer_tree_view_unrealize (GtkWidget *widget)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (widget);
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (widget);
GtkTreeIter iter;
gboolean iter_valid;
for (iter_valid = gtk_tree_model_get_iter_first (tree_view->model, &iter);
iter_valid;
iter_valid = gtk_tree_model_iter_next (tree_view->model, &iter))
{
GimpViewRenderer *renderer;
gtk_tree_model_get (tree_view->model, &iter,
layer_view->model_column_mask, &renderer,
-1);
if (renderer)
{
gimp_view_renderer_unrealize (renderer);
g_object_unref (renderer);
}
}
GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
}
static void
gimp_layer_tree_view_style_set (GtkWidget *widget,
GtkStyle *prev_style)
{
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (widget);
gint content_spacing;
gint button_spacing;
gtk_widget_style_get (widget,
"content_spacing", &content_spacing,
"button_spacing", &button_spacing,
NULL);
gtk_table_set_col_spacings (GTK_TABLE (layer_view->options_box),
button_spacing);
gtk_table_set_row_spacings (GTK_TABLE (layer_view->options_box),
content_spacing);
if (GTK_WIDGET_CLASS (parent_class)->style_set)
GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style);
}
/* GimpContainerView methods */
static void
gimp_layer_tree_view_set_container (GimpContainerView *view,
GimpContainer *container)
{
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (view);
GimpContainer *old_container;
old_container = gimp_container_view_get_container (view);
if (old_container)
{
gimp_container_remove_handler (old_container,
layer_view->mode_changed_handler_id);
gimp_container_remove_handler (old_container,
layer_view->opacity_changed_handler_id);
gimp_container_remove_handler (old_container,
layer_view->preserve_trans_changed_handler_id);
gimp_container_remove_handler (old_container,
layer_view->mask_changed_handler_id);
gimp_container_remove_handler (old_container,
layer_view->alpha_changed_handler_id);
}
parent_view_iface->set_container (view, container);
if (container)
{
layer_view->mode_changed_handler_id =
gimp_container_add_handler (container, "mode_changed",
G_CALLBACK (gimp_layer_tree_view_layer_signal_handler),
view);
layer_view->opacity_changed_handler_id =
gimp_container_add_handler (container, "opacity_changed",
G_CALLBACK (gimp_layer_tree_view_layer_signal_handler),
view);
layer_view->preserve_trans_changed_handler_id =
gimp_container_add_handler (container, "preserve_trans_changed",
G_CALLBACK (gimp_layer_tree_view_layer_signal_handler),
view);
layer_view->mask_changed_handler_id =
gimp_container_add_handler (container, "mask_changed",
G_CALLBACK (gimp_layer_tree_view_mask_changed),
view);
layer_view->alpha_changed_handler_id =
gimp_container_add_handler (container, "alpha_changed",
G_CALLBACK (gimp_layer_tree_view_alpha_changed),
view);
}
}
static gpointer
gimp_layer_tree_view_insert_item (GimpContainerView *view,
GimpViewable *viewable,
gint index)
{
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (view);
GimpLayer *layer;
GtkTreeIter *iter;
iter = parent_view_iface->insert_item (view, viewable, index);
layer = GIMP_LAYER (viewable);
if (! gimp_drawable_has_alpha (GIMP_DRAWABLE (layer)))
gimp_layer_tree_view_alpha_update (layer_view, iter, layer);
gimp_layer_tree_view_mask_update (layer_view, iter, layer);
return iter;
}
static gboolean
gimp_layer_tree_view_select_item (GimpContainerView *view,
GimpViewable *item,
gpointer insert_data)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (view);
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (view);
gboolean options_sensitive = FALSE;
gboolean success;
success = parent_view_iface->select_item (view, item, insert_data);
if (item)
{
if (success)
{
gimp_layer_tree_view_update_borders (layer_view,
(GtkTreeIter *) insert_data);
gimp_layer_tree_view_update_options (layer_view, GIMP_LAYER (item));
gimp_layer_tree_view_update_menu (layer_view, GIMP_LAYER (item));
}
options_sensitive = TRUE;
if (! success || gimp_layer_is_floating_sel (GIMP_LAYER (item)))
{
gtk_widget_set_sensitive (item_view->edit_button, FALSE);
}
}
gtk_widget_set_sensitive (layer_view->options_box, options_sensitive);
return success;
}
static void
gimp_layer_tree_view_set_preview_size (GimpContainerView *view)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (view);
GtkTreeIter iter;
gboolean iter_valid;
gint preview_size;
gint border_width;
preview_size = gimp_container_view_get_preview_size (view, &border_width);
for (iter_valid = gtk_tree_model_get_iter_first (tree_view->model, &iter);
iter_valid;
iter_valid = gtk_tree_model_iter_next (tree_view->model, &iter))
{
GimpViewRenderer *renderer;
gtk_tree_model_get (tree_view->model, &iter,
layer_view->model_column_mask, &renderer,
-1);
if (renderer)
{
gimp_view_renderer_set_size (renderer, preview_size, border_width);
g_object_unref (renderer);
}
}
parent_view_iface->set_preview_size (view);
}
/* GimpContainerTreeView methods */
static gboolean
gimp_layer_tree_view_drop_possible (GimpContainerTreeView *tree_view,
GimpDndType src_type,
GimpViewable *src_viewable,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos,
GtkTreeViewDropPosition *return_drop_pos,
GdkDragAction *return_drag_action)
{
if (src_type == GIMP_DND_TYPE_URI_LIST ||
src_type == GIMP_DND_TYPE_TEXT_PLAIN ||
src_type == GIMP_DND_TYPE_NETSCAPE_URL ||
src_type == GIMP_DND_TYPE_COMPONENT ||
GIMP_IS_DRAWABLE (src_viewable))
{
GimpLayer *dest_layer = GIMP_LAYER (dest_viewable);
GimpImage *dest_image = GIMP_ITEM_TREE_VIEW (tree_view)->gimage;
if (gimp_image_floating_sel (dest_image))
return FALSE;
if (dest_layer)
{
if (! gimp_drawable_has_alpha (GIMP_DRAWABLE (dest_layer)) &&
drop_pos == GTK_TREE_VIEW_DROP_AFTER)
return FALSE;
if (GIMP_IS_LAYER (src_viewable))
{
GimpLayer *src_layer = GIMP_LAYER (src_viewable);
GimpImage *src_image = gimp_item_get_image (GIMP_ITEM (src_layer));
if (src_image == dest_image &&
! gimp_drawable_has_alpha (GIMP_DRAWABLE (src_layer)))
return FALSE;
}
}
}
return GIMP_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_possible (tree_view,
src_type,
src_viewable,
dest_viewable,
drop_pos,
return_drop_pos,
return_drag_action);
}
static void
gimp_layer_tree_view_drop_color (GimpContainerTreeView *view,
const GimpRGB *color,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos)
{
if (gimp_drawable_is_text_layer (GIMP_DRAWABLE (dest_viewable)))
{
gimp_text_layer_set (GIMP_TEXT_LAYER (dest_viewable), NULL,
"color", color,
NULL);
gimp_image_flush (GIMP_ITEM_TREE_VIEW (view)->gimage);
return;
}
GIMP_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_color (view, color,
dest_viewable,
drop_pos);
}
static void
gimp_layer_tree_view_drop_uri_list (GimpContainerTreeView *view,
GList *uri_list,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (view);
GimpImage *gimage = item_view->gimage;
gint index = -1;
GList *list;
if (dest_viewable)
{
index = gimp_image_get_layer_index (gimage, GIMP_LAYER (dest_viewable));
if (drop_pos == GTK_TREE_VIEW_DROP_AFTER)
index++;
}
for (list = uri_list; list; list = g_list_next (list))
{
const gchar *uri = list->data;
GimpLayer *new_layer;
GimpPDBStatusType status;
GError *error = NULL;
new_layer = file_open_layer (gimage->gimp, item_view->context, NULL,
gimage, uri, &status, &error);
if (new_layer)
{
GimpItem *new_item = GIMP_ITEM (new_layer);
gint width, height;
gint off_x, off_y;
width = gimp_image_get_width (gimage);
height = gimp_image_get_height (gimage);
gimp_item_offsets (new_item, &off_x, &off_y);
off_x = (width - gimp_item_width (new_item)) / 2 - off_x;
off_y = (height - gimp_item_height (new_item)) / 2 - off_y;
gimp_item_translate (new_item, off_x, off_y, FALSE);
gimp_image_add_layer (gimage, new_layer, index++);
}
else if (status != GIMP_PDB_CANCEL)
{
gchar *filename = file_utils_uri_to_utf8_filename (uri);
g_message (_("Opening '%s' failed:\n\n%s"),
filename, error->message);
g_clear_error (&error);
g_free (filename);
}
}
gimp_image_flush (gimage);
}
static void
gimp_layer_tree_view_drop_component (GimpContainerTreeView *tree_view,
GimpImage *src_image,
GimpChannelType component,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (tree_view);
GimpChannel *channel;
GimpItem *new_item;
gint index = -1;
const gchar *desc;
gchar *name;
if (dest_viewable)
{
index = gimp_image_get_layer_index (item_view->gimage,
GIMP_LAYER (dest_viewable));
if (drop_pos == GTK_TREE_VIEW_DROP_AFTER)
index++;
}
channel = gimp_channel_new_from_component (src_image, component, NULL, NULL);
new_item = gimp_item_convert (GIMP_ITEM (channel), item_view->gimage,
GIMP_TYPE_LAYER, TRUE);
g_object_unref (channel);
gimp_enum_get_value (GIMP_TYPE_CHANNEL_TYPE, component,
NULL, NULL, &desc, NULL);
name = g_strdup_printf (_("%s Channel Copy"), desc);
gimp_object_set_name (GIMP_OBJECT (new_item), name);
g_free (name);
gimp_image_add_layer (item_view->gimage, GIMP_LAYER (new_item), index);
gimp_image_flush (item_view->gimage);
}
/* GimpItemTreeView methods */
static void
gimp_layer_tree_view_set_image (GimpItemTreeView *view,
GimpImage *gimage)
{
if (view->gimage)
g_signal_handlers_disconnect_by_func (view->gimage,
gimp_layer_tree_view_floating_selection_changed,
view);
GIMP_ITEM_TREE_VIEW_CLASS (parent_class)->set_image (view, gimage);
if (view->gimage)
g_signal_connect (view->gimage,
"floating_selection_changed",
G_CALLBACK (gimp_layer_tree_view_floating_selection_changed),
view);
}
static GimpItem *
gimp_layer_tree_view_item_new (GimpImage *image)
{
GimpLayer *new_layer;
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE,
_("New Layer"));
new_layer = gimp_layer_new (image,
gimp_image_get_width (image),
gimp_image_get_height (image),
gimp_image_base_type_with_alpha (image),
_("Empty Layer"), 1.0, GIMP_NORMAL_MODE);
gimp_image_add_layer (image, new_layer, -1);
gimp_image_undo_group_end (image);
return GIMP_ITEM (new_layer);
}
/* callbacks */
static void
gimp_layer_tree_view_floating_selection_changed (GimpImage *gimage,
GimpLayerTreeView *layer_view)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GimpLayer *floating_sel;
GtkTreeIter *iter;
floating_sel = gimp_image_floating_sel (gimage);
if (floating_sel)
{
iter = gimp_container_view_lookup (view, (GimpViewable *) floating_sel);
if (iter)
gtk_list_store_set (GTK_LIST_STORE (tree_view->model), iter,
tree_view->model_column_name_attributes,
layer_view->italic_attrs,
-1);
}
else
{
GList *list;
for (list = GIMP_LIST (gimage->layers)->list;
list;
list = g_list_next (list))
{
GimpDrawable *drawable = list->data;
if (gimp_drawable_has_alpha (drawable))
{
iter = gimp_container_view_lookup (view,
(GimpViewable *) drawable);
if (iter)
gtk_list_store_set (GTK_LIST_STORE (tree_view->model), iter,
tree_view->model_column_name_attributes,
NULL,
-1);
}
}
}
}
/* Paint Mode, Opacity and Preserve trans. callbacks */
#define BLOCK() \
g_signal_handlers_block_by_func (layer, \
gimp_layer_tree_view_layer_signal_handler, view)
#define UNBLOCK() \
g_signal_handlers_unblock_by_func (layer, \
gimp_layer_tree_view_layer_signal_handler, view)
static void
gimp_layer_tree_view_paint_mode_menu_callback (GtkWidget *widget,
GimpLayerTreeView *view)
{
GimpImage *gimage;
GimpLayer *layer = NULL;
gimage = GIMP_ITEM_TREE_VIEW (view)->gimage;
if (gimage)
layer = (GimpLayer *)
GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (gimage);
if (layer)
{
gint mode;
if (gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget),
&mode) &&
gimp_layer_get_mode (layer) != (GimpLayerModeEffects) mode)
{
GimpUndo *undo;
gboolean push_undo = TRUE;
/* compress layer mode undos */
undo = gimp_image_undo_can_compress (gimage, GIMP_TYPE_ITEM_UNDO,
GIMP_UNDO_LAYER_MODE);
if (undo && GIMP_ITEM_UNDO (undo)->item == GIMP_ITEM (layer))
push_undo = FALSE;
BLOCK();
gimp_layer_set_mode (layer, (GimpLayerModeEffects) mode, push_undo);
UNBLOCK();
gimp_image_flush (gimage);
if (! push_undo)
gimp_undo_refresh_preview (undo);
}
}
}
static void
gimp_layer_tree_view_preserve_button_toggled (GtkWidget *widget,
GimpLayerTreeView *view)
{
GimpImage *gimage;
GimpLayer *layer;
gimage = GIMP_ITEM_TREE_VIEW (view)->gimage;
layer = (GimpLayer *)
GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (gimage);
if (layer)
{
gboolean preserve_trans;
preserve_trans = GTK_TOGGLE_BUTTON (widget)->active;
if (gimp_layer_get_preserve_trans (layer) != preserve_trans)
{
GimpUndo *undo;
gboolean push_undo = TRUE;
/* compress opacity undos */
undo = gimp_image_undo_can_compress (gimage, GIMP_TYPE_ITEM_UNDO,
GIMP_UNDO_LAYER_PRESERVE_TRANS);
if (undo && GIMP_ITEM_UNDO (undo)->item == GIMP_ITEM (layer))
push_undo = FALSE;
BLOCK();
gimp_layer_set_preserve_trans (layer, preserve_trans, push_undo);
UNBLOCK();
gimp_image_flush (gimage);
}
}
}
static void
gimp_layer_tree_view_opacity_scale_changed (GtkAdjustment *adjustment,
GimpLayerTreeView *view)
{
GimpImage *gimage;
GimpLayer *layer;
gimage = GIMP_ITEM_TREE_VIEW (view)->gimage;
layer = (GimpLayer *)
GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (gimage);
if (layer)
{
gdouble opacity = adjustment->value / 100.0;
if (gimp_layer_get_opacity (layer) != opacity)
{
GimpUndo *undo;
gboolean push_undo = TRUE;
/* compress opacity undos */
undo = gimp_image_undo_can_compress (gimage, GIMP_TYPE_ITEM_UNDO,
GIMP_UNDO_LAYER_OPACITY);
if (undo && GIMP_ITEM_UNDO (undo)->item == GIMP_ITEM (layer))
push_undo = FALSE;
BLOCK();
gimp_layer_set_opacity (layer, opacity, push_undo);
UNBLOCK();
gimp_image_flush (gimage);
if (! push_undo)
gimp_undo_refresh_preview (undo);
}
}
}
#undef BLOCK
#undef UNBLOCK
static void
gimp_layer_tree_view_layer_signal_handler (GimpLayer *layer,
GimpLayerTreeView *view)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (view);
GimpLayer *active_layer;
active_layer = (GimpLayer *)
GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (item_view->gimage);
if (active_layer == layer)
gimp_layer_tree_view_update_options (view, layer);
}
#define BLOCK(object,function) \
g_signal_handlers_block_by_func ((object), (function), view)
#define UNBLOCK(object,function) \
g_signal_handlers_unblock_by_func ((object), (function), view)
static void
gimp_layer_tree_view_update_options (GimpLayerTreeView *view,
GimpLayer *layer)
{
BLOCK (view->paint_mode_menu,
gimp_layer_tree_view_paint_mode_menu_callback);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (view->paint_mode_menu),
layer->mode);
UNBLOCK (view->paint_mode_menu,
gimp_layer_tree_view_paint_mode_menu_callback);
if (layer->preserve_trans !=
GTK_TOGGLE_BUTTON (view->preserve_trans_toggle)->active)
{
BLOCK (view->preserve_trans_toggle,
gimp_layer_tree_view_preserve_button_toggled);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (view->preserve_trans_toggle),
layer->preserve_trans);
UNBLOCK (view->preserve_trans_toggle,
gimp_layer_tree_view_preserve_button_toggled);
}
if (layer->opacity * 100.0 != view->opacity_adjustment->value)
{
BLOCK (view->opacity_adjustment,
gimp_layer_tree_view_opacity_scale_changed);
gtk_adjustment_set_value (view->opacity_adjustment,
layer->opacity * 100.0);
UNBLOCK (view->opacity_adjustment,
gimp_layer_tree_view_opacity_scale_changed);
}
}
#undef BLOCK
#undef UNBLOCK
static void
gimp_layer_tree_view_update_menu (GimpLayerTreeView *layer_view,
GimpLayer *layer)
{
GimpUIManager *ui_manager = GIMP_EDITOR (layer_view)->ui_manager;
GimpActionGroup *group;
GimpLayerMask *mask;
group = gimp_ui_manager_get_action_group (ui_manager, "layers");
mask = gimp_layer_get_mask (layer);
gimp_action_group_set_action_active (group, "layers-mask-show",
mask &&
gimp_layer_mask_get_show (mask));
gimp_action_group_set_action_active (group, "layers-mask-disable",
mask &&
! gimp_layer_mask_get_apply (mask));
gimp_action_group_set_action_active (group, "layers-mask-edit",
mask &&
gimp_layer_mask_get_edit (mask));
}
/* Layer Mask callbacks */
static void
gimp_layer_tree_view_mask_update (GimpLayerTreeView *layer_view,
GtkTreeIter *iter,
GimpLayer *layer)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GimpLayerMask *mask;
GimpViewRenderer *renderer = NULL;
gboolean mask_visible = FALSE;
mask = gimp_layer_get_mask (layer);
if (mask)
{
GClosure *closure;
gint preview_size;
gint border_width;
preview_size = gimp_container_view_get_preview_size (view, &border_width);
mask_visible = TRUE;
renderer = gimp_view_renderer_new (G_TYPE_FROM_INSTANCE (mask),
preview_size, border_width,
FALSE);
gimp_view_renderer_set_viewable (renderer, GIMP_VIEWABLE (mask));
g_signal_connect (renderer, "update",
G_CALLBACK (gimp_layer_tree_view_renderer_update),
layer_view);
closure = g_cclosure_new (G_CALLBACK (gimp_layer_tree_view_mask_callback),
layer_view, NULL);
g_object_watch_closure (G_OBJECT (renderer), closure);
g_signal_connect_closure (mask, "apply_changed", closure, FALSE);
g_signal_connect_closure (mask, "edit_changed", closure, FALSE);
g_signal_connect_closure (mask, "show_changed", closure, FALSE);
}
gtk_list_store_set (GTK_LIST_STORE (tree_view->model), iter,
layer_view->model_column_mask, renderer,
layer_view->model_column_mask_visible, mask_visible,
-1);
if (renderer)
{
gimp_layer_tree_view_update_borders (layer_view, iter);
gimp_view_renderer_remove_idle (renderer);
g_object_unref (renderer);
}
}
static void
gimp_layer_tree_view_mask_changed (GimpLayer *layer,
GimpLayerTreeView *layer_view)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GtkTreeIter *iter;
iter = gimp_container_view_lookup (view, GIMP_VIEWABLE (layer));
if (iter)
gimp_layer_tree_view_mask_update (layer_view, iter, layer);
}
static void
gimp_layer_tree_view_renderer_update (GimpViewRenderer *renderer,
GimpLayerTreeView *layer_view)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GimpLayerMask *mask;
GtkTreeIter *iter;
mask = GIMP_LAYER_MASK (renderer->viewable);
iter = gimp_container_view_lookup (view, (GimpViewable *)
gimp_layer_mask_get_layer (mask));
if (iter)
{
GtkTreePath *path;
path = gtk_tree_model_get_path (tree_view->model, iter);
gtk_tree_model_row_changed (tree_view->model, path, iter);
gtk_tree_path_free (path);
}
}
static void
gimp_layer_tree_view_update_borders (GimpLayerTreeView *layer_view,
GtkTreeIter *iter)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GimpViewRenderer *layer_renderer;
GimpViewRenderer *mask_renderer;
GimpLayerMask *mask = NULL;
GimpViewBorderType layer_type = GIMP_VIEW_BORDER_BLACK;
gtk_tree_model_get (tree_view->model, iter,
tree_view->model_column_renderer, &layer_renderer,
layer_view->model_column_mask, &mask_renderer,
-1);
if (mask_renderer)
mask = GIMP_LAYER_MASK (mask_renderer->viewable);
if (! mask || (mask && ! gimp_layer_mask_get_edit (mask)))
layer_type = GIMP_VIEW_BORDER_WHITE;
gimp_view_renderer_set_border_type (layer_renderer, layer_type);
if (mask)
{
GimpViewBorderType mask_color = GIMP_VIEW_BORDER_BLACK;
if (gimp_layer_mask_get_show (mask))
{
mask_color = GIMP_VIEW_BORDER_GREEN;
}
else if (! gimp_layer_mask_get_apply (mask))
{
mask_color = GIMP_VIEW_BORDER_RED;
}
else if (gimp_layer_mask_get_edit (mask))
{
mask_color = GIMP_VIEW_BORDER_WHITE;
}
gimp_view_renderer_set_border_type (mask_renderer, mask_color);
}
if (layer_renderer)
g_object_unref (layer_renderer);
if (mask_renderer)
g_object_unref (mask_renderer);
}
static void
gimp_layer_tree_view_mask_callback (GimpLayerMask *mask,
GimpLayerTreeView *layer_view)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GtkTreeIter *iter;
iter = gimp_container_view_lookup (view, (GimpViewable *)
gimp_layer_mask_get_layer (mask));
gimp_layer_tree_view_update_borders (layer_view, iter);
}
static void
gimp_layer_tree_view_layer_clicked (GimpCellRendererViewable *cell,
const gchar *path_str,
GdkModifierType state,
GimpLayerTreeView *layer_view)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GtkTreePath *path;
GtkTreeIter iter;
path = gtk_tree_path_new_from_string (path_str);
if (gtk_tree_model_get_iter (tree_view->model, &iter, path))
{
GimpViewRenderer *renderer;
GimpUIManager *ui_manager;
GimpActionGroup *group;
ui_manager = GIMP_EDITOR (tree_view)->ui_manager;
group = gimp_ui_manager_get_action_group (ui_manager, "layers");
gtk_tree_model_get (tree_view->model, &iter,
layer_view->model_column_mask, &renderer,
-1);
if (renderer)
{
GimpLayerMask *mask = GIMP_LAYER_MASK (renderer->viewable);
if (gimp_layer_mask_get_edit (mask))
gimp_action_group_set_action_active (group,
"layers-mask-edit", FALSE);
g_object_unref (renderer);
}
}
gtk_tree_path_free (path);
}
static void
gimp_layer_tree_view_mask_clicked (GimpCellRendererViewable *cell,
const gchar *path_str,
GdkModifierType state,
GimpLayerTreeView *layer_view)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GtkTreePath *path;
GtkTreeIter iter;
path = gtk_tree_path_new_from_string (path_str);
if (gtk_tree_model_get_iter (tree_view->model, &iter, path))
{
GimpViewRenderer *renderer;
GimpUIManager *ui_manager;
GimpActionGroup *group;
ui_manager = GIMP_EDITOR (tree_view)->ui_manager;
group = gimp_ui_manager_get_action_group (ui_manager, "layers");
gtk_tree_model_get (tree_view->model, &iter,
layer_view->model_column_mask, &renderer,
-1);
if (renderer)
{
GimpLayerMask *mask = GIMP_LAYER_MASK (renderer->viewable);
if (state & GDK_MOD1_MASK)
gimp_action_group_set_action_active (group, "layers-mask-show",
! gimp_layer_mask_get_show (mask));
else if (state & GDK_CONTROL_MASK)
gimp_action_group_set_action_active (group, "layers-mask-disable",
gimp_layer_mask_get_apply (mask));
else if (! gimp_layer_mask_get_edit (mask))
gimp_action_group_set_action_active (group,
"layers-mask-edit", TRUE);
g_object_unref (renderer);
}
}
gtk_tree_path_free (path);
}
/* GimpDrawable alpha callbacks */
static void
gimp_layer_tree_view_alpha_update (GimpLayerTreeView *view,
GtkTreeIter *iter,
GimpLayer *layer)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
gtk_list_store_set (GTK_LIST_STORE (tree_view->model), iter,
tree_view->model_column_name_attributes,
gimp_drawable_has_alpha (GIMP_DRAWABLE (layer)) ?
NULL : view->bold_attrs,
-1);
}
static void
gimp_layer_tree_view_alpha_changed (GimpLayer *layer,
GimpLayerTreeView *layer_view)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GtkTreeIter *iter;
iter = gimp_container_view_lookup (view, (GimpViewable *) layer);
if (iter)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (view);
gimp_layer_tree_view_alpha_update (layer_view, iter, layer);
/* update button states */
if (gimp_image_get_active_layer (item_view->gimage) == layer)
gimp_container_view_select_item (GIMP_CONTAINER_VIEW (view),
GIMP_VIEWABLE (layer));
}
}
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